package com.automannn.atm_back.modules.system.controller;

import com.alibaba.fastjson.JSON;
import com.automannn.atm_back.common.api.vo.Result;
import com.automannn.atm_back.common.system.query.QueryGenerator;
import com.automannn.atm_back.common.system.vo.DictVO;
import com.automannn.atm_back.common.system.vo.LoginUser;
import com.automannn.atm_back.common.util.AtmConvertUtils;
import com.automannn.atm_back.modules.system.entity.SysCategory;
import com.automannn.atm_back.modules.system.model.TreeSelectModel;
import com.automannn.atm_back.modules.system.service.ISysCategoryService;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.SecurityUtils;
import org.jeecgframework.poi.excel.ExcelImportUtil;
import org.jeecgframework.poi.excel.def.NormalExcelConstants;
import org.jeecgframework.poi.excel.entity.ExportParams;
import org.jeecgframework.poi.excel.entity.ImportParams;
import org.jeecgframework.poi.excel.view.JeecgEntityExcelView;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * @author chenkh
 * @time 2020/6/27 9:15
 */
@RestController
@RequestMapping("/sys/category")
@Slf4j
public class SysCategoryController {
    @Autowired
    private ISysCategoryService sysCategoryService;

    /**
     * 分页列表查询
     * @param sysCategory
     * @param pageNo
     * @param pageSize
     * @param req
     * @return
     */
    @GetMapping(value = "/rootList")
    public Result<IPage<SysCategory>> queryPageList(SysCategory sysCategory,
                                                    @RequestParam(name="pageNo", defaultValue="1") Integer pageNo,
                                                    @RequestParam(name="pageSize", defaultValue="10") Integer pageSize,
                                                    HttpServletRequest req) {
        if(AtmConvertUtils.isEmpty(sysCategory.getPid())){
            sysCategory.setPid("0");
        }
        Result<IPage<SysCategory>> result = new Result<IPage<SysCategory>>();

        //--author:os_chengtgen---date:20190804 -----for: 分类字典页面显示错误,issues:377--------start
        //QueryWrapper<SysCategory> queryWrapper = QueryGenerator.initQueryWrapper(sysCategory, req.getParameterMap());
        QueryWrapper<SysCategory> queryWrapper = new QueryWrapper<SysCategory>();
        queryWrapper.eq("pid", sysCategory.getPid());
        //--author:os_chengtgen---date:20190804 -----for: 分类字典页面显示错误,issues:377--------end

        Page<SysCategory> page = new Page<SysCategory>(pageNo, pageSize);
        IPage<SysCategory> pageList = sysCategoryService.page(page, queryWrapper);
        result.setSuccess(true);
        result.setResult(pageList);
        return result;
    }

    @GetMapping(value = "/childList")
    public Result<List<SysCategory>> queryPageList(SysCategory sysCategory, HttpServletRequest req) {
        Result<List<SysCategory>> result = new Result<List<SysCategory>>();
        QueryWrapper<SysCategory> queryWrapper = QueryGenerator.initQueryWrapper(sysCategory, req.getParameterMap());
        List<SysCategory> list = sysCategoryService.list(queryWrapper);
        result.setSuccess(true);
        result.setResult(list);
        return result;
    }


    /**
     *   添加
     * @param sysCategory
     * @return
     */
    @PostMapping(value = "/add")
    public Result<SysCategory> add(@RequestBody SysCategory sysCategory) {
        Result<SysCategory> result = new Result<SysCategory>();
        try {
            sysCategoryService.addSysCategory(sysCategory);
            result.success("添加成功！");
        } catch (Exception e) {
            log.error(e.getMessage(),e);
            result.error500("操作失败");
        }
        return result;
    }

    /**
     *  编辑
     * @param sysCategory
     * @return
     */
    @PutMapping(value = "/edit")
    public Result<SysCategory> edit(@RequestBody SysCategory sysCategory) {
        Result<SysCategory> result = new Result<SysCategory>();
        SysCategory sysCategoryEntity = sysCategoryService.getById(sysCategory.getId());
        if(sysCategoryEntity==null) {
            result.error500("未找到对应实体");
        }else {
            sysCategoryService.updateSysCategory(sysCategory);
            result.success("修改成功!");
        }
        return result;
    }

    /**
     *   通过id删除
     * @param id
     * @return
     */
    @DeleteMapping(value = "/delete")
    public Result<SysCategory> delete(@RequestParam(name="id",required=true) String id) {
        Result<SysCategory> result = new Result<SysCategory>();
        SysCategory sysCategory = sysCategoryService.getById(id);
        if(sysCategory==null) {
            result.error500("未找到对应实体");
        }else {
            boolean ok = sysCategoryService.removeById(id);
            if(ok) {
                result.success("删除成功!");
            }
        }

        return result;
    }

    /**
     *  批量删除
     * @param ids
     * @return
     */
    @DeleteMapping(value = "/deleteBatch")
    public Result<SysCategory> deleteBatch(@RequestParam(name="ids",required=true) String ids) {
        Result<SysCategory> result = new Result<SysCategory>();
        if(ids==null || "".equals(ids.trim())) {
            result.error500("参数不识别！");
        }else {
            this.sysCategoryService.removeByIds(Arrays.asList(ids.split(",")));
            result.success("删除成功!");
        }
        return result;
    }

    /**
     * 通过id查询
     * @param id
     * @return
     */
    @GetMapping(value = "/queryById")
    public Result<SysCategory> queryById(@RequestParam(name="id",required=true) String id) {
        Result<SysCategory> result = new Result<SysCategory>();
        SysCategory sysCategory = sysCategoryService.getById(id);
        if(sysCategory==null) {
            result.error500("未找到对应实体");
        }else {
            result.setResult(sysCategory);
            result.setSuccess(true);
        }
        return result;
    }

    /**
     * 导出excel
     *
     * @param request
     */
    @RequestMapping(value = "/exportXls")
    public ModelAndView exportXls(HttpServletRequest request, SysCategory sysCategory) {
        // Step.1 组装查询条件查询数据
        QueryWrapper<SysCategory> queryWrapper = QueryGenerator.initQueryWrapper(sysCategory, request.getParameterMap());
        List<SysCategory> pageList = sysCategoryService.list(queryWrapper);
        // Step.2 AutoPoi 导出Excel
        ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
        // 过滤选中数据
        String selections = request.getParameter("selections");
        if(AtmConvertUtils.isEmpty(selections)) {
            mv.addObject(NormalExcelConstants.DATA_LIST, pageList);
        }else {
            List<String> selectionList = Arrays.asList(selections.split(","));
            List<SysCategory> exportList = pageList.stream().filter(item -> selectionList.contains(item.getId())).collect(Collectors.toList());
            mv.addObject(NormalExcelConstants.DATA_LIST, exportList);
        }
        //导出文件名称
        mv.addObject(NormalExcelConstants.FILE_NAME, "分类字典列表");
        mv.addObject(NormalExcelConstants.CLASS, SysCategory.class);
        LoginUser user = (LoginUser) SecurityUtils.getSubject().getPrincipal();
        mv.addObject(NormalExcelConstants.PARAMS, new ExportParams("分类字典列表数据", "导出人:"+user.getRealname(), "导出信息"));
        return mv;
    }

    /**
     * 通过excel导入数据
     *
     * @param request
     * @param response
     * @return
     */
    @RequestMapping(value = "/importExcel", method = RequestMethod.POST)
    public Result<?> importExcel(HttpServletRequest request, HttpServletResponse response) {
        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
        Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
        for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) {
            MultipartFile file = entity.getValue();// 获取上传文件对象
            ImportParams params = new ImportParams();
            params.setTitleRows(2);
            params.setHeadRows(1);
            params.setNeedSave(true);
            try {
                List<SysCategory> listSysCategorys = ExcelImportUtil.importExcel(file.getInputStream(), SysCategory.class, params);
                for (SysCategory sysCategoryExcel : listSysCategorys) {
                    sysCategoryService.save(sysCategoryExcel);
                }
                return Result.ok("文件导入成功！数据行数：" + listSysCategorys.size());
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                return Result.error("文件导入失败："+e.getMessage());
            } finally {
                try {
                    file.getInputStream().close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return Result.error("文件导入失败！");
    }



    /**
     * 加载单个数据 用于回显
     */
    @RequestMapping(value = "/loadOne", method = RequestMethod.GET)
    public Result<SysCategory> loadOne(@RequestParam(name="field") String field,@RequestParam(name="val") String val) {
        Result<SysCategory> result = new Result<SysCategory>();
        try {

            QueryWrapper<SysCategory> query = new QueryWrapper<SysCategory>();
            query.eq(field, val);
            List<SysCategory> ls = this.sysCategoryService.list(query);
            if(ls==null || ls.size()==0) {
                result.setMessage("查询无果");
                result.setSuccess(false);
            }else if(ls.size()>1) {
                result.setMessage("查询数据异常,["+field+"]存在多个值:"+val);
                result.setSuccess(false);
            }else {
                result.setSuccess(true);
                result.setResult(ls.get(0));
            }
        } catch (Exception e) {
            e.printStackTrace();
            result.setMessage(e.getMessage());
            result.setSuccess(false);
        }
        return result;
    }

    /**
     * 加载节点的子数据
     */
    @RequestMapping(value = "/loadTreeChildren", method = RequestMethod.GET)
    public Result<List<TreeSelectModel>> loadTreeChildren(@RequestParam(name="pid") String pid) {
        Result<List<TreeSelectModel>> result = new Result<List<TreeSelectModel>>();
        try {
            List<TreeSelectModel> ls = this.sysCategoryService.queryListByPid(pid);
            result.setResult(ls);
            result.setSuccess(true);
        } catch (Exception e) {
            e.printStackTrace();
            result.setMessage(e.getMessage());
            result.setSuccess(false);
        }
        return result;
    }

    /**
     * 加载一级节点/如果是同步 则所有数据
     */
    @RequestMapping(value = "/loadTreeRoot", method = RequestMethod.GET)
    public Result<List<TreeSelectModel>> loadTreeRoot(@RequestParam(name="async") Boolean async,@RequestParam(name="pcode") String pcode) {
        Result<List<TreeSelectModel>> result = new Result<List<TreeSelectModel>>();
        try {
            List<TreeSelectModel> ls = this.sysCategoryService.queryListByCode(pcode);
            if(!async) {
                loadAllCategoryChildren(ls);
            }
            result.setResult(ls);
            result.setSuccess(true);
        } catch (Exception e) {
            e.printStackTrace();
            result.setMessage(e.getMessage());
            result.setSuccess(false);
        }
        return result;
    }

    /**
     * 递归求子节点 同步加载用到
     */
    private void loadAllCategoryChildren(List<TreeSelectModel> ls) {
        for (TreeSelectModel tsm : ls) {
            List<TreeSelectModel> temp = this.sysCategoryService.queryListByPid(tsm.getKey());
            if(temp!=null && temp.size()>0) {
                tsm.setChildren(temp);
                loadAllCategoryChildren(temp);
            }
        }
    }

    /**
     * 校验编码
     * @param pid
     * @param code
     * @return
     */
    @GetMapping(value = "/checkCode")
    public Result<?> checkCode(@RequestParam(name="pid",required = false) String pid,@RequestParam(name="code",required = false) String code) {
        if(AtmConvertUtils.isEmpty(code)){
            return Result.error("错误,类型编码为空!");
        }
        if(AtmConvertUtils.isEmpty(pid)){
            return Result.ok();
        }
        SysCategory parent = this.sysCategoryService.getById(pid);
        if(code.startsWith(parent.getCode())){
            return Result.ok();
        }else{
            return Result.error("编码不符合规范,须以\""+parent.getCode()+"\"开头!");
        }

    }


    /**
     * 分类字典树控件 加载节点
     * @param pid
     * @param pcode
     * @param condition
     * @return
     */
    @RequestMapping(value = "/loadTreeData", method = RequestMethod.GET)
    public Result<List<TreeSelectModel>> loadDict(@RequestParam(name="pid",required = false) String pid,@RequestParam(name="pcode",required = false) String pcode, @RequestParam(name="condition",required = false) String condition) {
        Result<List<TreeSelectModel>> result = new Result<List<TreeSelectModel>>();
        //pid如果传值了 就忽略pcode的作用
        if(AtmConvertUtils.isEmpty(pid)){
            if(AtmConvertUtils.isEmpty(pcode)){
                result.setSuccess(false);
                result.setMessage("加载分类字典树参数有误.[null]!");
                return result;
            }else{
                if(ISysCategoryService.ROOT_PID_VALUE.equals(pcode)){
                    pid = ISysCategoryService.ROOT_PID_VALUE;
                }else{
                    pid = this.sysCategoryService.queryIdByCode(pcode);
                }
                if(AtmConvertUtils.isEmpty(pid)){
                    result.setSuccess(false);
                    result.setMessage("加载分类字典树参数有误.[code]!");
                    return result;
                }
            }
        }
        Map<String, String> query = null;
        if(AtmConvertUtils.isNotEmpty(condition)) {
            query = JSON.parseObject(condition, Map.class);
        }
        List<TreeSelectModel> ls = sysCategoryService.queryListByPid(pid,query);
        result.setSuccess(true);
        result.setResult(ls);
        return result;
    }

    /**
     * 分类字典控件数据回显[表单页面]
     * @param ids
     * @return
     */
    @RequestMapping(value = "/loadDictItem", method = RequestMethod.GET)
    public Result<List<String>> loadDictItem(@RequestParam(name="ids") String ids) {
        Result<List<String>> result = new Result<>();
        LambdaQueryWrapper<SysCategory> query = new LambdaQueryWrapper<SysCategory>().in(SysCategory::getId,ids);
        List<SysCategory> list = this.sysCategoryService.list(query);
        List<String> textList = new ArrayList<String>();
        for (String id : ids.split(",")) {
            for (SysCategory c : list) {
                if(id.equals(c.getId())){
                    textList.add(c.getName());
                    break;
                }
            }
        }
        result.setSuccess(true);
        result.setResult(textList);
        return result;
    }


    /**
     * [列表页面]加载分类字典数据 用于值的替换
     * @param code
     * @return
     */
    @RequestMapping(value = "/loadAllData", method = RequestMethod.GET)
    public Result<List<DictVO>> loadAllData(@RequestParam(name="code",required = true) String code) {
        Result<List<DictVO>> result = new Result<List<DictVO>>();
        LambdaQueryWrapper<SysCategory> query = new LambdaQueryWrapper<SysCategory>();
        if(AtmConvertUtils.isNotEmpty(code) && !"0".equals(code)){
            query.likeRight(SysCategory::getCode,code);
        }
        List<SysCategory> list = this.sysCategoryService.list(query);
        if(list==null || list.size()==0) {
            result.setMessage("无数据,参数有误.[code]");
            result.setSuccess(false);
            return result;
        }
        List<DictVO> rdList = new ArrayList<DictVO>();
        for (SysCategory c : list) {
            rdList.add(new DictVO(c.getId(),c.getName()));
        }
        result.setSuccess(true);
        result.setResult(rdList);
        return result;
    }
}
